How to Customize Tab Colors in Shiny\'s tabPanel?

Changing the Background Color of Tabs in Shiny's tabPanel

Customization Challenge

In this challenge, we aim to enhance the appearance of a Shiny application using tabsetPanels. We aim to create a UI where the selected panel features a white text on a black background, while the inactive tabs maintain a white background with black text.

Code Snippet

Below is the code used to illustrate the solution:

library(shiny)

ui <h3 id="Solution-Breakdown">Solution Breakdown</h3><ol>
<li>
<strong>CSS Customization:</strong> We utilize CSS to modify the appearance of the tabs. Specifically, we target the .nav-tabs class to set the background color to aqua and text color to black. Additionally, we apply styles to change the active tab's background and border colors.</li>
<li>
<strong>Colors:</strong> The active tab is styled with a black background and white text, while non-active tabs display a white background with black text.</li>
<li>
<strong>Customizable Tabs:</strong> We assign explicit colors to various tabs when they are inactive, maintaining the desired visual distinction.</li>
</ol><h3 id="Result">Result</h3><p>The solution provides a visually appealing application where the active tab is highlighted with a black background and white text. The inactive tabs remain easily distinguishable with their white background and black text.</p><h3 id="Note-on-Continual-Refinement">Note on Continual Refinement</h3><p>As Shiny CSS changes are prone to occur over time, it's important to adapt the code accordingly. However, the core principles outlined in this solution should continue to guide the customization process.</p>

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